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TMP102AIDRLR

TITMP102AIDRLR

Texas Instruments
Temperature Sensor Digital, Local -40°C ~ 125°C 12 b SOT-563
Active12,977 in stock
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Overview

The TMP102AIDRLR is a low-power digital temperature sensor featuring an I2C and SMBus interface in a compact SOT-563 package. It offers a 12-bit resolution (0.0625 degrees C per LSB) and can operate on supply voltages as low as 1.4V, making it ideal for battery-powered systems. The device is NIST traceable and includes an SMBus Alert function to simplify thermal management in embedded designs.

Why Choose This Part

The TMP102 stands out for its extremely low active current of 7.5uA and its ability to operate down to 1.4V, well below the standard 1.8V threshold. It simplifies board design with integrated spike suppression and Schmitt triggers on inputs, while maintaining high typical accuracy of +/-0.5 degrees C without user calibration.

Applications

Battery-Powered Instrumentation
Utilizes the low 1.4V supply minimum and 0.35uA shutdown current to extend battery life in handheld devices.
Thermal Management
Provides accurate local temperature monitoring with an integrated SMBus Alert for over-temperature or under-temperature interrupts.
Compact Wearable Electronics
Fits into height-constrained designs due to the 0.6mm thin SOT-563 package and minimal external component requirements.
System Health Monitoring
Uses extended mode for 13-bit output and NIST traceability to ensure reliable environmental sensing in industrial equipment.

Key Specifications

Features One-Shot, Output Switch, Shutdown Mode
Resolution 12 b
Output Type I2C/SMBus
Sensor Type Digital, Local
Mounting Type Surface Mount
Package / Case SOT-563, SOT-666
Test Condition -25degC ~ 85degC (-40degC ~ 125degC)
Voltage - Supply 1.4V ~ 3.6V
Operating Temperature -55degC ~ 150degC
Supplier Device Package SOT-563
Accuracy - Highest (Lowest) +/-2degC (+/-3degC)
Sensing Temperature - Local -40degC ~ 125degC

Getting Started

Engineers can evaluate this sensor using the TI TMP102EVM evaluation module or by connecting the SOT-563 package to a standard I2C bus on an MCU like an MSP430. Implementation requires setting the ADR0 pin for one of four possible I2C addresses and configuring the 16-bit configuration register for desired conversion rates or one-shot mode.

TMP102 Family

Part NumberDifferenceStock
TMP102AQDRLRQ1 Pkg: SOT-5X3 2,891
Also available as: TMP102

Also Consider

TMP117 TITexas Instruments - Offers much higher accuracy (+/-0.1 degrees C) for medical and precision industrial applications.
MCP9808 MCHPMicrochip - A popular alternative with +/-0.25 degrees C accuracy and a standard 2.0V to 5.5V supply range.
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